- Diana's trainer and brother. Greek god of the music, medicine, the sun, etc. Odin - Thor's trainer. He has a vision which gives him the idea for the contest. Isis - Amon's trainer and Egyptian goddess of motherhood, magic and fertility. Ereshkigal - Anna's trainer and twin sister. Sumerian goddess of the underworld. She tries to trick the other avatars by telling them that she is an avatar. Trickster - Also referred to in the series as Loki, Eshu, Maui, Coyote. He tries to take revenge on the rest of the gods by manipulating the avatars so that he will get the powers of all the avatars. See also So This Is How It Ends List of Avatars characters Tui T. Sutherland References External links Website of the author Fantasy novel series HarperCollins books